3-hydroxy-N-[[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]methyl]-N,3-dimethyl-4-oxo-4-phenylbutanamide 、
4,4'-dimethoxytrityl triflate 在
吡啶 作用下,
反应 4.0h,
以89%的产率得到N-((1-((2R,4S,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxytetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)methyl)-3-hydroxy-N,3-dimethyl-4-oxo-4-phenylbutanamide